Window-screen



UNITED STATES PATENT OEEICE.

WINDOW-SCREEN.

SPECIFICATION forming part of Letters Patent No. 236,754, dated January18, 1881.

' Application ined Aprnmseo. (Model.)

Io the same, reference being had to the accompanying drawings, whichform a part of this specification, and in which- Figure 1 is a view of awindowframe with sashes to which my improvement has been applied. Fig. 2isv a vertical sectional view of one of the sashes. Fig. 3 is across-section of the same. Fig. 4 is a side view of the same, and Fig. 5is a perspective view of the fastening-plate of the frictionstripdetached.

Corresponding parts in the several iigures are denoted by like lettersof reference.

This invention relates to thatolass of window sashes or screens whichare heldin position by thefriction against the window-frame of a strippressed outward by means of suitably-arranged springs, and it consists,essentially, in the construction of an improved fastener forsecuringpsuch friction-strip in position, as will be hereinafter morefully shown and described.

In the drawings, A represents the windowframe. which is provided on oneside with a groove, B, to fit a strip, C, upon one side of the sash D.Upon its other side the frame D is provided with a groove, E, to receivethe friction-strip F, which is tted in a groove in the adjoining side ofthe sash. Suitable springs, HH, are placed in groove E, to force thestrip vF outward and create sufficient friction to retain the sash atany desired elevation.

To secure the friction-strip F in position I employ metallic plates I,arranged in groove E, adjoining the said strip, and having its outer endbent, as at J, to fit over the edge of the sash, and provided with aperforation, K, to receive the screw by which the plate is secured tothe sash. 'Ihe body of plate I is provided with a slot, L, to receivethe head of a screw or pin, M, which is permanently secured in the sideof strip F, contiguous to the plate.

The operation will be seen at a glance. The plate I J, while preventingthe strip F from being displaced, permits it to work freely in thedirection of the tension of the springs H and perform the functionassigned for it.

One or more of the fastening-plates may be employed to hold each stripFin position, and when two or more are used they may be arranged onopposite sides and at opposite ends of the strip.

Having thus described my invention, I claim and desire to secure byLetters Patent of the United States- The combination, with the groovedor recessed sash D, of the spring friction-strip F and slotted plates IJ having their outer bent part, J, permanently secured upon the sash,and their slotted part I extending into its groove or recess andengaging with a screw or headed pin, M, secured permanently on thecontiguous side of strip F, substantially as and for the purpose hereinshown and specied.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

DAVID BENONA BAUDER.

Witnesses:

AUGUsTUs SPIEs, BENJAMIN T. PHILLIPS.

